package com.lhd.action.observer;

/**
 * @Author: liuhd
 * @Date: 2024/12/18 20:20
 * @Description: 抽象观察者
 */
public abstract class Fan {
    protected String name;
    public Fan(String name){
        this.name = name;
    }
    public abstract void update(String msg);
}
